Furnace.



v Patented Jan. -8, l90l.

0 B L A ,B m 5 6 6 0 F U B N A G E (Application filed Jan. 17, 1900.

4 Sheets-Sheet 1.

(No Model.)

Invenlor:

Pat outed Ian 8, l90l.

4 Sheets-Shot 2.

B. TALBOT. FURNACE. (hpplicatio n and Jan. 17, 1900.

(No Model.)

M ENRN m: unams virus on. vnoroumm. \vAsnmcmm a c No. 665,62l.

Patented Jan. 8, I901. B. TALBOT.

F U B N A O E.

(Application filed. Jan. 17, 1900.)

4 Sheets-Sheet 3.

(No Model.)

' Patented m. 8, I901.

Nd. 665,6'2I.

B. TALBOT FURNACE.

(Application filed Jan. 17, 1900.)

4 Sheets-Sheet 4.

(No Model.)

M @NK I I I A I l l a m/4W 1m: nonms vncns 004 Pncrp-uma. WAsMmoTOm u, c

'struction illustrated in Fig. 1.-

UNlTED STATES rrion.

PATENT FURNACE.

SPECIFICATION forming part of Letters Patent No. 665,621, dated January8, 1901.

Application filed January 17, 1900. Serial No. 1,724. (No model.)

To all whom it may concern..-

Be it known that I, BENJAMIN TALBOT, residing at Pencoyd, in the countyof Montgomery and State of Pennsylvania, have invented new and usefulImprovements in Furnaces, of which the following is a specification.

This invention relates to the employment of multiple flames in a furnaceor furnaces having, preferably, multiple heating-chambers.

One object of my invention is to employ a central regenerator orregenerators for cooperation in producing the flames and for absorbingthe heated volatile products thereof, whether one or more such flames beemployed, in an operation in which the flame or flames are adapted toact in constant direction.

A further object of my invention is to so arrange the heating-chambersas to permit their independent or combined use in order that the furnacemay be adapted for carrying on either limited or large operationseconomically and so that a part may be shut down for repairs while theremainder is operated.

In the accompanying drawings, illustrating my invention, Figure 1 is aview in front elevation of a furnace embodying my improvements. Fig. 2is a top plan view of the con- Fig. 3 is an enlarged partial top planview illustrating my invention,showing details ofconstruction, withparts broken away for the purpose of illustration. Fig. 3 is a partialsectional view on the line a Ct of Fig. 3 in illustration of the movablecovers and their related parts, which may be employed when my inventionis used as a pit heating-furnace. Fig. 4 is a vertical sectional viewtaken longitudinally through the center of the furnace. Fig. 4 is asectional view taken on the line b b of Fig. 4. Fig. 4 is a sectionalview taken on the line c of Fig. 4. Fig. 5 is an elevation illustratingthe regenerators and the conduits therefor, parts being shown in sectionfor the purpose of illustration. Fig. 5 is a sectional view taken on theline (2 dof Fig. 5. Fig. 5 is a sectional view taken on the line e e ofFig. 5.

Referring to the drawings, the parts 1 1 are conduits leading from thegas-producers to the furnace. These conduits communicate with therespective conduits 2 2, the entrances to which are controlled by thevalves The parts 6 6 are conduits leading from the regenerators to thefurnace. nicate with the respective conduits 7 7 which deliver theheated air to the combustion-chambers 4 4., the valves 8 8 controllingthe flow of air therethrough.

The heating-chambers 5 5 are wholly separated by the wall 9, the heatedproducts of combustion escaping therefrom through the passages 10 10,each heating-chamber being provided, preferably, with two of suchoutlets separated by 'a wall 11 11. It will be understood, however, thatthe walls 9 and 11 11 may be omitted and a common escape or outletemployed for both heating-chambers. The passages 10 10 communicate withthe conduit 12, which leads to a valve-chamber 13, communicating witheach of the regenerators 14: 14: by the passages 15 15' and also withthe drum 16, having the branches 17 17, leading to the flues orconduits6 6. A valve 18 on the shaft 19 controls the communications through thevalve-chamber 13. This valve maybe operated conveniently by means of apinion 20 on the shaft 19, having a rack 21 engaging therewith andreciprocated at will, as by means of a hydraulic cylinder and piston.The regenerators let 14 are also connected by the passages 22 22 with avalve-chamber 23, opening into the air-supply pipe 24 and the stack 25.Avalve 26 on the shaft 27 controls the communications through thevalvechamber 23 and may be operated, as previously described, by apinion 28 and a rack 29, reciprocated as by a hydraulic cylinder andpiston. Each of the regenerators is provided with the usual checker-work30 for absorbing the heated volatile products from the furnace andheating the air employed in ctfecting combustion. To afford a passagefor air from each of the regenerators to the other to be utilized in thecombustion of any unburned gases and solid particles of carbon escapingfrom the furnace, and thus providing energy for heating theregenerators,with means for consuming the smoke, a by-pass 31,preferably controlled bya slide-valve 32, connects the regenerators.

They commu- In the construction which I have shown for the purpose ofillustrating my invention the heating-chambers 5 5 are arched over bythe fixed arches 33 33', which support the shapes 34 34, affordingtracks for the trucks 35 35 and water seals for the movable arches 3636. These movable arches are the covers for the pit-openings 3'7 37 andare suspended from the trucks 35 35 by the hangers 38, the lower edgesof which extend into the water-chan nels formed in the shapes to preventthe passage of flames from the furnace, the ends of the arches beingsuitably closed by metal plates 39. These trucks and the archessupported thereby are moved by means of hydraulic cylinders 40 40',having pistons connected with the trucks, as by the rods 41 41'.

Slag is run from the furnace through the spouts 42 42, which empty intothe slag-pots 43 43 In the operation of heating the furnace gas ispassed from the producers through the fines or conduits 1 1 and 2 2 intothe furnace, where it is combined with air which has passed from thesupply-pipe 24 through the valve-chamber 23 to the regenerator 14,thencethrough the heated checker-work therein to the valve-chamber l3, thenceinto the drum 16 and the branches 17 17,and thence through the flues orconduits 6 6 and 7 7 to the furnace. The flames produced by thecombination of air and gas act upon the contents of the heating-chambers5 5, and the gaseous products of combustion pass out through thepassages 10 10 to the conduit 12, by which they are conducted to thevalve-chamber 13, passing thence through the checker-work in theregenerator 14, and thence through the valve-chamber 23 to the stack 25.To consume any unburned gases, as previously described, heated airfromthe regenerator 14 is passed through the by-pass 31 and combines withthe heated products from the furnace in the regenerator 14', thussupplying heat energy and reducing smoke. When the regenerator 14 hasbecome sufficiently heated, the valves 18 and 26 are moved to thereverse positions to those shown, which reverses the current of gas fromthe furnace, sending it through the regenerator 14, and reverses the airfrom the supply-pipe, sending it through the regenerator 14. It will ,beseen that by closing the conduits leading to either heating-chamber, asby closing the valves 3 and 8 or 3 and 8, either part of the furnace maybe shut down,while the operation of the other or others, Where more thantwo heating-chambers are employed, may be continued.

Manifold heating-chambers may be connected with the central regeneratoror regenerators, as by multiplying the hot-air conduits leadingtherefrom. A second furnace may be connected with the regeneratorthrough a second hot-air drum 16, having hot-air conduits leadingtherefrom.

The air-supply for the regenerator may be furnished by fan-blast or itcan be obtained by natural draft, as when the regenerators are alongsideor beneath the furnace.

The gas producer or producers are placed as close to the furnace ascircumstances will permit, and the gas is delivered hot therefrom forcombination with the heated air from the regenerators.

While a construction has been shown and described which is speciallyadapted for soaking or heating ingots, the principle employed isspecially valuable in operating a number of furnaces, such aspuddling-furnaces or retort coke-ovens.

Having thus described my invention, I claim- 1. In combination with aplurality of furnace heating-chambers, a plurality of regenerators,aconduit for conducting hot air from each of said regenerators to eachof said heating-chambers, a conduit for conducting gases to each of saidheating-chambers, said conduits being arranged to combine said hot airand said gases a conduit for conducting hot gases from each of saidheating-chambers to said regenerators, and valves for controlling theflow of air and gases through said regenerators substantially asspecified.

2.. In combination with a furnace having a pair of heating-chambersseparated by a removable partition and adapted to be used separately oras a single heating-chamber, a pair of regenerators, a conduit forconducting hot air from each of said regenerators to each of saidchambers, aconduit for cond ucting gases to each of said chambers, saidconduits being arranged to combine said hot air with said gases, aconduit for conducting hot gases from each of said furnace-chambers toeach of said regenerators, and valves for controlling the flow of airand gases through said regenerators, substantially as specified.

3. In combination with a furnace having heating-chambers separated by aremovable partition and adapted to be used separately or as a singlechamber, a pair of regenerators, a conduit for conducting hot air toeach of said heating-chambers, a valve-chamber communicating with eachof said regenera tors and said hot-air conduits, a conduit forconducting hot gases from each of said heating-chambers to saidvalve-chamber, and a 0 said regenerators and the other of saidregenerators into communication with said wastepipe, substantially asspecified.

In testimony whereof I have hereunto signed my name, in the presence ofthe subscribing witnesses, this 11th day of J anuary, A. D. 1900.

BENJAMIN TALBOT Witnesses:

THOMAS S. GATES, CHARLES N. BUTLER.

